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Offering the benefits of 15kVDC insulation resistance testing to environments such as HV transmission and distribution substations, Megger’s S1-1568 test sets combine noise rejection of 8mA — twice that of most comparable instruments — with user-selectable software filtering and the ability to make accurate and dependable measurements up to 35TΩ.

S1-1568 test sets

The 15kV capability of the new S1-1568 insulation resistance test sets means that they can be used to demonstrate compliance with the growing number of standards that specify this test voltage. These include NETA MTS-1997 Table 10.1, applicable to maximum-voltage rating of equipment, NETA ATS 2007 Section 7.15.1 for medium-voltage motors and IEC 60229 2007 for electric cables with a special protective function.

The remote operation facility, which is complemented by internal storage for time-stamped results, means that when measurements need to be made in hazardous environments, users can, after connecting the instrument, conduct the test from a safe area.

According to the company, the remote operation and result storage capabilities also make the instruments an excellent choice for use in production environments where they can be controlled automatically by the production equipment.

Despite their versatility, the new instruments are fast and simple to operate, according to Megger — their intuitive user interface allows all major functions to be selected with two rotary controls, and a large backlit display allows multiple results to be shown simultaneously. 

Key features and benefits

  • High short-circuit current capability of 6mA saves time by ensuring rapid charging of items under tests
  • The S1-1568 instruments offer IR, timed IR, DAR, PI, DD, SV and ramp diagnostic tests, making them suitable for a range of applications
  • Internal fast-charge lithium-ion batteries facilitate operation away from mains supply sources
  • Provision for full remote operation is via a galvanically isolated USB port
  • All terminals of the S1-1568 have a CAT IV 1000 V safety rating at altitudes up to 4,000m
  • The test leads supplied with the instrument feature insulated clips that are specifically designed for 15kV creepage paths
  • Compact and lightweight, the instruments feature a tough dual-case design and, with the lid closed, they have an IP65 ingress protection rating
  • Excellent noise rejection performance is ensured

Megger

For 100 year Megger has been committed to making electrical measurement of low and high voltage systems more accurate and simple-to-use. It has a reputation for tough, reliable, high quality equipment.

For 100 year Megger has been committed to making electrical measurement of low and high voltage systems more accurate and simple-to-use. It has a reputation for tough, reliable, high quality equipment.

Megger offers equipment for testing breakers, protection relays and CTs, as well as transformers, earthing systems and standby batteries to the electrical generation, transmission and distribution industries. In the LV sector Megger is the market leader for the testing of building wiring to the 17th Edition of the Wiring Regulations and portable appliances.

They have recently acquired a range of water leak detectors

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